*instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.

Our team is looking for a Senior Full Stack (React+ Node.js) developer for one of our clients.

Our customer is one of the TOP-5 global management consulting firms considered to be among the most prestigious ones in the world. Hundreds of customers from Fortune-500, including the largest global financial institutions, the world’s top media companies, technology companies and federal government agencies rely on our Client’s proven platform and services.

Our expectations of the candidate: 

  • 5+ years of experience in full-stack development;
  • Proficiency in Node.js and React (50/50 split between frontend and backend tasks);
  • Solid experience with JavaScript/TypeScript across the full stack;
  • Strong understanding of RESTful APIs and integration with frontend interfaces;
  • Hands-on experience in UI/UX improvements and component refactoring;
  • Familiarity with state management libraries (e.g., Redux, Zustand, or similar);
  • Experience with code versioning tools (e.g., Git);
  • Basic knowledge of unit testing and test frameworks (Jest, React Testing Library, etc.).

English: Upper-Intermediate

Soft skills: 

  • Ability to work effectively in a small team and take ownership of features;
  • Comfortable working in a revamp environment — improving and modernizing an existing application;
  • Backend logic will mostly remain unchanged, but must be capable of handling increased complexity;
  • Strong problem-solving and communication skills;
  • Ability to work independently while collaborating closely with teammates;
  • Good communication skills

Responsibilities and tasks:

  • Contribute to both frontend (React) and backend (Node.js) development in roughly equal measure;
  • Lead efforts in improving the UI and overall user experience of the application;
  • Collaborate with teammates to analyze, design, and implement scalable features;
  • Maintain and refactor existing backend logic to support heavier business logic and traffic;
  • Participate in code reviews, technical discussions, and sprint planning;
  • Help shape technical direction and development standards for the revamped application.

We offer:

  • flexible working time;
  • professional and ambitious team;
  • transparent system of professional and career development;
  • learning opportunities, seminars and conferences and time for exploring new technologies;
  • the opportunity to realize your potential outside the projects: we arrange meetups and conferences where our staff can perform, develop professional communities;
  • co-funding for language courses  (English).

Join us and be part of a team that is changing the world through technology.

Important Notice Regarding Your Personal Data Security

At *instinctools, we take the security of your personal data very seriously. Please be informed that all official communication, offers, and correspondence from *instinctools are conducted only through our verified company resources, including:

Official Email Domain: @instinctools.com
Company Website: https://www.instinctools.com

Important Reminder:
*instinctools will NEVER ask for sensitive personal or financial information, including:
– Bank account details
– Credit/debit card numbers
– Passwords or PINs

If you receive any suspicious requests claiming to be from *instinctools via unofficial channels (e.g., personal emails, social media DMs, or phone calls), please:

– Do not respond or share any information.

– Report it immediately to compliance@instinctools.com or your official contact.

Your trust and security are our top priorities. For any questions, always verify through our official channels.

 

Thank you for your attention and cooperation.

Developers

*instinctools is a developer of IT solutions for Western Europe. We have over 350 projects in our portfolio. The spheres are different – from healthcare and medicine, training and education, to digital advertising, economics and IT. For the software implementation and maintenance across such a number of projects, competent developers are important.

We use a modern technology stack, the key of which are:

Javascript, ReactJS, Angular, Node.js, Golang, Python, Java, iOS, Android, Blockchain, AWS.

Join the *instinctools team!

Natallia Babovich
Natallia Babovich Recruiter
We will be glad to see you in our team!

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    *instinctools Poland
    We have had a representative office in Poland (Warsaw) since 2021. Our Polish team consists of highly qualified and experienced specialists – most of them are Middle to Senior level Developers.
    Right now we’re on the lookout for bright and innovative minds to join our professional team!